DF8403: Duplicate Command Id

Message

Command id "{id}" is already used by another command or child command

Cause

ctx.commands.register(command) or a command handle update() received a command tree where at least one id is already owned by another top-level command or child command. Command ids are globally unique per hub context, including child commands.

Fix

• Namespace every command id under your tool, such as my-tool:reload or my-tool:open-settings.
• Give each child command its own id instead of reusing the parent id.
• Unregister the previous command before replacing it with a different command tree.

Source

• packages/hub/src/node/host-commands.ts — DevframeCommandsHost.register() and command handle update() throw when a command id is duplicated.